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W. W. STEWART. BAND PASTEVN'I'NG.

10.293,812. Patemed Feb; 19,' 1384.

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W. W.STBWA'RT. lBANDPASTENIM 4. j A No. 293,812.v Patented 11613.19,1884.

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, UNIT-13D STATES PATENT OFFICE.

I YILLIAM'V. STEWART, OF BROOKLYN, NEW YORK.

BAND-FASTENING.'

SPECIFICATION forming' part of Letters Iatent No. 293,812, datedFebruary 19, 1884.

Application tiled December 11, 1883.' (No model.)

To all whom it may concern .Be it known that I, WILLIAM W. STEW- ART, acitizen of the United States, residing in Brooklyn, in the county ofKings and State of New York, have invented certain Improvements inBand-Fastenings, of which the following is a specification.

This fastening is designed particularly for bracelets which consist of aflat band ofmetal; but it is applicable also to other metal bandssuch asbale-ties-and, indeed, to any fiat band one end of which it is desiredto fasten adjustably to the other en-dor to another like band.

Figure 1 of the accompanying drawings is a perspective view of abracelet constructed according to my invention. Fig. 2is aplan thereofdevoid of ornamentation. Fig. 3 is a section of the clamp detached. Fig.4 is an edge view thereof. Fig. 5 is a side view of Fig. 2,

and Fig. 6 is a longitudinal section cut along the line 6 6 in Fig. 2.v.The remaining views illustrate modications, and will be describedhereinafter.

Referring to Fig. 1, let A designate asheet metal band designed to passaround the wrist,

and B a clamp or fastening device connected toone end, a, thereof, andadapted toreceive the other end, b, and clamp the two together. Thisclamp B is better shown in Figs. 2 to 6. It consists of a plate pivotedat c to the end a of the band, and having a slot or passage, d, formedthrough it flatwise, through which the ends a b of the band may pass,the passage having lateral extensions e e of contracted thickness, asshown in` Figs. 8 and 4. The Vthick passage or slot d is ofgreater'thickness than the superposed ends a b of the band, so that whenone is lying in it the other may readily be passed through. The lateralextensions e e are made considerably thinner than the slot d, andtaperas'they recede therefrom, joining the slot at its thickness, andtapering to a thickness slightly less than that of the two ends a -b ofthe band at their edges, ,as shown in Fig. 4. These extensions e e areshown, in Fig. 3. The end a of the band is inserted into the slot d, andthetwo are connected by the rivet c on the back. The clamp B may then beturned on the band as far as the extensions e e will admit. The clampbeing turned, as shown in Figs. 2 and 3, with the end a in the wideslotd, the other end, b, may be inserted to any required size of wrist,and then by turning or twisting the clamp B the extensions e e will becaused to engage the two layers of the band and pinch them together.tighter it will wedge itself against these ends, and the latter againsteach other. In practice it will simply be twisted by the fingers untilsufficient to keep the ends from pulling apart underany strain to whicha bracelet is ordinarily subject. VThe bands may be straight and plain,as in Fig. 8, in which case friction alone is relied upo'nto fastenthem; or they may be corrugated, as shown inFigs.v 1, 5,

and 6, in which case their corrugations coincide and fit together, andAwhen the clamp is twisted they are kept from separating far enough todisengage thecorrugations, and so Vare fastened together in a positivemanner. The passage or slot d must be made thick enough to admit the twobands when their corrugations are opposed or alternate, instead ofcoinciding, in order to permit the end b to be inserted past the end a.

Fig. 7 is a front view of a niodieatiomwhercof Fig. Sis a side view.Fig. 9 is a section of the clamp. Fig. 10 is an edge view thereof;

and Fig. 11 is a view similar to Fig. 7, lshowing the fastening applied.This form differs from that already described only in that the pivot cis placed outside the edge line of the slot-extension e. The clamp isturned as shown in Fig. 7. The end b is then thrust lthrough the slot d,and the clamp is turned back to the position shown in Fig. 1l, or untilthe fastening is made tight.

Fig. 12 shows another fastening similar to the one just described, butwith' the clamp B made from two plates riveted together at c and f.Fig.,13 is an edge view thereof. Fig.

14 shows the position of the clamp before slipping through the end b,afterwhich the clamp is turned down, asin Fig. 12.

Figs. 15 and 16 show another modiiication, being views similar,respectively, to Figs. 12 and 14. There are two clamps, B B, pivoted toopposite .edges of the band a, and working from opposite sides. Afterthe end bis slipped through, they are pressed together, as shown in Fig.15.

distance, in order to adapt the bracelet to any` The farther it isturned thel conveniently tight, when the pressure will be band a, andthereis consequently only one Figs. 17 and IS are views answering toFigs.

2 and 6, and showing a modified method of constructing the clamp B. rIhelatter is made of a shell of metal, presenting an external appearanee ofsolidity, the ornamentation of its surface being effected by striking itup in dies, thereby forming ornamental depressions or indentations. Thedepth and arrangement of these are so determined that when the clamp isturned the deepest ones shall embrace and clamp between them the twolayers t b of the band. rIhis construction is consequently practicallyidentical with that first described, the difference being that theformer has contracted slots c c, joining the wide slot d by straightlilies, and with substantially plane interior surfaees,whereas inthelatter the lines areirregular and follow the design, and the interiorsurfaces are of varying height and uneven contour. The clamping in botheases is the same.

Fig. 19 is a View answering to Fig. 2, and showing a modificationwherein a circular clamp is used, pivoted to the band beyond the edgeline thereof, and capable ot' being turned on this pivot (c) to eitherside. Itis shown in full lines in the open position, and in dotted linesin the clamped position. Vhen the latter position is reached, a springcatch or tongue, g, enters anotch in the clamp and holds the latter fromturning back.

My invention is applicable to bale ties, strap-fastenings, and otheruses, as well as to bracelets.

I claim as newl. A fastening for bands or straps, consisting of amovable clamp embracing the same, and provided with a slot or passagethrough it of sufficient width to admit two superposed layers orthicknesses of the band or strap, and

with a lateral extension of said slot or passage, 4o

the thickness of which is less than that of the superposed layers of theband or strap,where by, when the clamp is turned until thelayers of theband or strap are forced into this lateral extension, they are pressedtightly together 45 and so fastened, substantially as set forth.

2. rIlhe combination, with the end a of a band, of a clamp, B, pivotedthereto, and provided with a passage or slot, (l, therethrough, and witha lateral contracted extension, e, of said passage, constructed andadapted to operate substantially as set forth.

3. The combination of band A, the ends a, b of which are corrugated withinterlocking corrugations, with a clamp, B, connected to said band, andhaving a slot or passage, d, of sufficient thickness to admit the ends ab and permit them to be slid past each other there in, and a lateralextension, e, of said passage contracted to less thickness than thesuperposed ends (t b when their corrugations are interlocked, adapted tooperate'substantially as set forth.

et. The combination of band A, clamp B, formed with passage d andcontracted lateral extension c, and pivot c, joining the clamp to theband, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of'two subscribing witnesses. I

WILLIAM \V. STFVART.

Witnesses:

ARTHUR C. Fiziisnr., GEORGE I'I. FRASER.

